Adding and Subtracting Two Digit Numbers

Front

What is addition?

Back

Addition is the process of finding the total or sum by combining two or more numbers.

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CCSS.1.OA.A.1

Front

What is subtraction?

Back

Subtraction is the process of finding the difference between two numbers by taking one number away from another.

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CCSS.2.OA.A.1

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What is a two-digit number?

Back

A two-digit number is a number that has two places, such as 10 to 99.

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CCSS.1.NBT.A.1

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What does the '+' symbol mean?

Back

The '+' symbol means to add numbers together.

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CCSS.1.OA.A.1

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What does the '-' symbol mean?

Back

The '-' symbol means to subtract one number from another.

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CCSS.7.NS.A.1C

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What is the sum of 53 and 37?

Back

The sum of 53 and 37 is 90.

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CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

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What is the difference between 95 and 37?

Back

The difference between 95 and 37 is 58.

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CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

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If you have $55 and spend $29, how much do you have left?

Back

You have $26 left.

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CCSS.2.OA.A.1

Front

What is the sum of 76 and 22?

Back

The sum of 76 and 22 is 98.

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CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Front

How do you check your subtraction?

Back

You can check your subtraction by adding the difference to the smaller number to see if you get the larger number.

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CCSS.1.OA.A.1